EP1185156B1 - Device for transferring/holding sheetlike member and its method - Google Patents
Device for transferring/holding sheetlike member and its method Download PDFInfo
- Publication number
- EP1185156B1 EP1185156B1 EP00929798A EP00929798A EP1185156B1 EP 1185156 B1 EP1185156 B1 EP 1185156B1 EP 00929798 A EP00929798 A EP 00929798A EP 00929798 A EP00929798 A EP 00929798A EP 1185156 B1 EP1185156 B1 EP 1185156B1
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- EP
- European Patent Office
- Prior art keywords
- conveying
- holding
- plate
- board
- rail
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
- B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
- B65G49/06—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for fragile sheets, e.g. glass
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/0061—Tools for holding the circuit boards during processing; handling transport of printed circuit boards
- H05K13/0069—Holders for printed circuit boards
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/0061—Tools for holding the circuit boards during processing; handling transport of printed circuit boards
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/04—Mounting of components, e.g. of leadless components
- H05K13/0404—Pick-and-place heads or apparatus, e.g. with jaws
- H05K13/0411—Pick-and-place heads or apparatus, e.g. with jaws having multiple mounting heads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Supply And Installment Of Electrical Components (AREA)
Description
- The present invention relates to an apparatus and method for conveying and holding a plate-like member, wherein a carried-in plate-like member can be held and, after prescribed operations such as printing, processing, component mounting, and so forth, the held plate-like member can be carried out. In particular, the present invention relates to a work apparatus such as a component mounting apparatus or the like equipped with a plate-like member conveying/holding device favorable as a board conveying/holding device for holding a board when the board onto which components are mounted is used as an example of a plate-like member and components are mounted on the board.
- In recent years, while electronic circuit boards vary in sizes widely from a small size type including a portable telephone to a large size board such as a server computer or the like, it is being required to produce them most efficiently in a minimum process time. As a form of a mounting apparatus, a robot-type mounting apparatus, in which a working head for sucking electronic components is moved by using an XY robot to mount the electronic components, is becoming a main stream.
- Hereafter, an example of a conventional electronic component mounting apparatus is explained with reference to
Fig. 35 . - In the figure, reference numerals. 1201, 1202 and 1203 denote component feed units for taping components. Reference numeral 204 denotes a component feed unit for components housed on a tray.
Reference numerals Reference numeral 1207 denotes a nozzle station for housing a plurality of kinds of nozzles suitable for a plurality of kinds of electronic components.Reference numeral 1208 denotes a loader for carrying anelectronic circuit board 1211 into a component mounting work area. Reference numeral 1209 denotes a board conveying/holding device composed ofsupport rails electronic circuit board 1212. The board conveying/holding device 1209 is constituted such that onesupport rail 1209b can be moved as far as aposition 1210 according to the maximum size of the electronic circuit board to be applied.Reference numeral 1213 denotes an unloader for carrying theelectronic circuit board 1211 out of the component mounting work area. - Operations in the conventional electronic component mounting apparatus are explained with reference to
Fig. 35 . Anelectronic circuit board 1211 is supported bysupport rails loader 1208. A working head (not shown) is moved by an XY robot along a path shown with A inFig. 35 . An electronic component is sucked by a component suction nozzle attached to the working head from a tapingcomponent feed unit 1201. The working head is moved and a suction attitude of the sucked component is measured by arecognition camera 1205. After the calculation for a position correction, the sucked and recognized component is mounted onto theelectronic circuit board 1212 by movement of the working head while its position is corrected. Meanwhile, a component feed unit for feeding electronic components is also disposed in the rear of the component mounting work area of the mounting apparatus as shown withreference numerals component feed unit 1203 or the components housed on atray 1204 is also picked up by arecognition camera 1206 so that its attitude at a suction position is recognized. After the calculation for a position correction, the sucked and recognized component is mounted onto theelectronic circuit board 1212 by a nozzle. This path is shown with B. - In recent years, electronic circuit boards vary from of a small size type to of a large size type. In an electronic component mounting apparatus,
support rails support rails support rail 1209a on the front side of the mounting apparatus is fixed while thesupport rail 1209b in the rear can be moved depending on the board size. Consequently, thecomponent feed units rear position 1210 of thesupport rail 1209b. In a small size board, this seriously hinders reduction of a mounting time since the moving distance of the working head from suction of the electronic component to mounting through recognition is increased, resulting in the longer moving time as shown with path B. While the mounting time needs to be reduced to reduce costs of mounting electronic components, the distances between three processes, that is, a suction process, recognition process, and mounting process of electronic components needs to be minimized to reduce this mounting time. To minimize the distances between the three processes, there is a method of integrally movingsupport rails support rails - Accordingly, the object of the present invention is to provide an apparatus and method for conveying and holding a plate-like member, wherein the plate-like member can be carried in to a conveying position and then moved to a desired work position to perform a desired work efficiently while been held irrespective of the size of the plate-like member and, after the desired work, can be moved to a conveying position and carried out so that the plate-like member is carried in, held, and carried out efficiently and rapidly, and thus the above issue is solved.
- Furthermore, the present invention provides a component mounting apparatus equipped with the plate-like member conveying/holding device as a board conveying/holding device, wherein the moving distances of a component holding member between component holding, component recognition, and component mounting can be reduced irrespective of the size of the board to shorten the mounting time and thereby improve mounting efficiency.
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US 4,638,985 discloses a sheet holding apparatus having a pair of parallelly disposed rails for sliding a sheet, such as a printed board, and plural guide holders having plural positioning guide pins to be inserted in holes of the printed wiring board. The distance between the pair of rails is changed by a screw shaft which is rotated by a driving motor responding to change of size of the sheet, and a spline shaft is disposed along the rails, and the guide holders are provided to be slidable on the spline shaft, which puts up and down the guide holders, hence positioning guide pins above and below a level of carrying plane of the sheet by rotation thereof. - In order to achieve the above object, the present invention has the following constitutions.
- According to a first aspect of the present invention, there is provided a device for conveying and holding a plate-like member as defined in
claim 1. - According to a second aspect of the present invention, there is provided a component mounting apparatus as defined in
claim 7. According to a third aspect of the present invention, there is provided a method for conveying and holding a plate-like member as defined inclaim 17. According to a fourth aspect of the present invention, there is provided a method for mounting components as defined in claim 18. According to a fifth aspect of the present invention, there is provided a work device for a plate-like member as defined inclaim 22. According to a sixth aspect of the present invention, there is provided a work method for a plate-like member as defined in claim 26. - These and other aspects and features of the present invention will become clear from the following description taken in conjunction with the preferred embodiments thereof with reference to the accompanying drawings, in which:
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Fig. 1 is a general schematic perspective view showing a component mounting apparatus having a board conveying/holding device according to an embodiment of the present invention; -
Fig. 2 is a general schematic layout plan of the component mounting apparatus ofFig. 1 ; -
Fig. 3 is a general detail plan view showing the component mounting apparatus ofFig. 1 ; -
Fig. 4 is a detail plan view showing the board conveying/holding device ofFig. 1 ; -
Fig. 5 is a detail right side view showing the board conveying/holding device ofFig. 1 ; -
Fig. 6 is a perspective view showing the board conveying/holding device ofFig. 1 ; -
Fig. 7 is a detail enlarged right side view showing a selective lock mechanism of the board conveying/holding device ofFig. 1 ; -
Fig. 8 is a detail front view showing the board conveying/holding device ofFig. 1 ; -
Fig. 9 is an explanatory view showing an operation of conveying a board by two board conveying/holding devices in the component mounting apparatus ofFig. 1 ; -
Fig. 10 is an explanatory view showing operations of returning to the origin and mounting of support rail units in the board conveying/holding devices in the component mounting apparatus ofFig. 1 ; -
Fig. 11 is an explanatory view showing an initial state of the support rail units of the board conveying/holding devices in the component mounting apparatus ofFig. 1 ; -
Fig. 12 is an explanatory view showing an operation of returning to the origins of support rail units on the locked sides of the board conveying/holding devices in the component mounting apparatus ofFig. 1 ; -
Fig. 13 is an explanatory view showing an operation of returning to the origins of support rail units on the always moved sides of the board conveying/holding devices in the component mounting apparatus ofFig. 1 ; -
Fig. 14 is an explanatory view showing an operation of adjusting the support rail units on the always moved sides of the board conveying/holding devices in the component mounting apparatus ofFig. 1 according to the board width; -
Fig. 15 is an explanatory view showing a state of the support rail units of the board conveying/holding devices in the component mounting apparatus ofFig. 1 when a board is being conveyed; -
Fig. 16 is an explanatory view showing a state of the support rail units of the board conveying/holding devices in the component mounting apparatus ofFig. 1 when components are being mounted; -
Fig. 17 is an explanatory view showing a state of the support rail units of the board conveying/holding devices in the component mounting apparatus ofFig. 1 during maintenance thereof, replacement of support pins or support plates, or change of nozzles; -
Fig. 18 is an explanatory view showing a state of the support rail units of the board conveying/holding devices in the component mounting apparatus ofFig. 1 when a mounting operation is completed; -
Fig. 19 is an explanatory view showing a state of the support rail units of the respective board conveying/holding devices in the component mounting apparatus ofFig. 1 when boards are carried out after the completion of the mounting operation; -
Fig. 20 is an explanatory view showing a state of the support rail units of the respective board conveying/holding devices in the component mounting apparatus ofFig. 1 when boards are carried in; -
Fig. 21 is an explanatory view showing a state of the support rail units of the board conveying/holding devices in the component mounting apparatus ofFig. 1 when mounting of components is started after completion of carrying-in of the boards; -
Fig. 22 is a timing chart of a board conveying operation in a first board conveying/holding device in the component mounting apparatus ofFig. 1 ; -
Fig. 23 is a timing chart of a board conveying operation in a second board conveying/holding device in the component mounting apparatus ofFig. 1 ; -
Fig. 24 is a schematic right side view showing a state of the board conveying/holding devices in the component mounting apparatus ofFig. 1 when components are being mounted as shown inFig. 16 ; -
Fig. 25 is a schematic right side view showing a state of the board conveying/holding device in the component mounting apparatus ofFig. 1 when the support rail unit is returned to the origin as shown inFig. 13 ; -
Fig. 26 is a schematic right side view showing a state of the board conveying/holding device in the component mounting apparatus ofFig. 1 during the maintenance inFig. 17 ; -
Fig. 27 is a timing chart of the support rail unit of each of the board conveying/holding devices in the component mounting apparatus ofFig. 1 when the support rail unit is returned to the origin and adjusted according to the board width; -
Fig. 28 is a block diagram showing a connection relationship of a control unit to respective drive units and sensors in the component mounting apparatus ofFig. 1 ; -
Fig. 29 is a plan view showing a component mounting apparatus according to another embodiment of the present invention; -
Fig. 30 is a plan view showing a state of the component mounting apparatus ofFig. 29 during component mounting; -
Fig. 31 is a plan view showing a state of a first board conveying/holding device in the component mounting apparatus ofFig. 29 when boards are being replaced; -
Fig. 32 is a plan view showing a state of a second board conveying/holding device in the component mounting apparatus ofFig. 29 when boards are being replaced; -
Fig. 33 is a plan view showing a component mounting apparatus according to yet another embodiment of the present invention; -
Fig. 34 is a perspective view showing a modification of a board conveying/holding device in a component mounting apparatus according to the yet another embodiment of the present invention; -
Fig. 35 is a plan view of a conventional component mounting apparatus; and -
Fig. 36 is a general schematic layout plan of a component mounting apparatus according to yet another embodiment of the present invention. - Before the description of the present invention proceeds, it is to be noted that like parts are designated by like reference numerals throughout the accompanying drawings.
- In a component mounting apparatus equipped with a plate-like member conveying/holding device and a method therefor according to a first embodiment of the present invention, as shown in
Figs. 1 to 3 , components are mounted onto aboard 2 onto which components are mounted (a board referred to irrespective of its position is designated byreference numeral 2, while boards at specific positions are designated by reference numerals 2-0, 2-1, 2-2, 2-3 or the like) as an example of a plate-like member. A case where this embodiment is applied to such a board conveying/holding device and a method for holding theboard 2 is explained below. - The component mounting apparatus is outlined first before explained in detail.
- In the above component mounting apparatus, in a component mounting work area in one component mounting apparatus, two
electronic circuit boards 2 are diagonally disposed in zigzag so as to be opposed to each other. Components can be mounted independently on the respective boards. Therefore, two sets of working heads, drive units thereof, board conveying/holding devices, recognition cameras, and so forth are disposed. Furthermore, the board conveying/holding device holding theelectronic circuit board 2 is moved to a position closer to a component feed unit in each mounting area to mount components. The reference for adjusting the board conveying/holding device according to the width of the board 2 (distance adjustment according to the board width) in a front-side mounting area closer to an operator of the two divided component mounting work areas is an edge portion on the front side, while that of the other mounting area, which is further from the operator, is an edge portion on the rear side. Consequently, the mounting time can be shortened by minimizing the movement distance of the working head from component feeding, component recognition to component mounting.Board 2 carried into the respective board conveying/holding devices are once positioned in a central portion and then the board on the board conveying/holding device on the right hand side inFig. 2 is positioned to the left, while the board on the board conveying/holding device on the left side is positioned to the right so that the mounting movement distance can be reduced and thus the time can be shortened. Furthermore, when the twoboards - A constitution of the component mounting apparatus according to one embodiment of the present invention is explained in detail with reference to
Figs. 1 to 9 . Through these figures, like component members are designated by like reference numerals. -
Figs. 1 and2 are a general schematic perspective view and a plan view, respectively, showing an electronic component mounting apparatus in the above embodiment of the present invention. A component mountingwork area 200 of the mounting apparatus is divided into two areas, afirst mounting area 201 and asecond mounting area 202, in a plate-like member conveying direction at a board conveying position, that is, divided assuming a component conveyance path as a border. InFigs. 1 and2 ,reference numeral 1 denotes a loader, which is disposed on the board carrying-in side of the component mountingwork area 200, and carries anelectronic circuit board 2 into the component conveyance path on the component mountingwork area 200, in which the first mountingarea 201 and thesecond mounting area 202 are disposed adjacent to each other.Reference numeral 11 is an unloader, which is disposed on the board carrying-out side of the component conveyance path on the component mountingwork area 200 and carries theelectronic circuit board 2 out from the component conveyance path on the component mountingwork area 200, in which the first mountingarea 201 and thesecond mounting area 202 are disposed adjacent to each other. In the electronic component mounting apparatus of the above embodiment, various component members are positioned point-symmetrically with respect to acentral point 102 of the component mounting work area 200 (seeFig. 10 ) as described below. - That is,
reference numeral 3 denotes a first board conveying/holding device equipped with a pair ofsupport rail units 21, 22 (when support rail units are referred to irrespective of their positioned,reference numerals electronic circuit board 2 carried in from theloader 1 at the board conveying position.Reference numeral 4 denotes a working head, to which a plurality of, for example, tencomponent suction nozzles 10 for sucking and holding an electronic component are replaceably attached in the first mountingarea 201.Reference numeral 5 denotes an XY robot, which positions the workinghead 4 in the first mountingarea 201 at a prescribed position in X-Y directions, which are two directions perpendicular to each other in the first mountingarea 201.Reference numeral 7 denotes a nozzle station, which is disposed in the vicinity of acomponent feed unit 8A described later in the first mountingarea 201, houses a plurality of kinds ofnozzles 10 suitable for a plurality of kinds of electronic components and replaces these nozzles withnozzles 10 attached to the workinghead 4 as required.Reference numerals area 201, that is, in front of the operator, and house taping components, which are components housed and held in a tape and are to be mounted on theboard 2.Reference numeral 8C denotes a component feed unit, which is disposed in the vicinity of thecomponent feed unit 8B in the first mountingarea 201 and houses tray components, which are components housed and held on a tray and are to be mounted on theboard 2.Reference numeral 9 denotes a recognition camera, which is disposed on the side closer to the center of the component mounting work area in the vicinity of thecomponent feed unit 8A in the first mountingarea 201 and picks up an image of a suction attitude of an electronic component sucked by thenozzle 10 of the workinghead 4.Reference numeral 9a inFig. 3 denotes a two-dimensional camera in therecognition camera 9.Reference numeral 9b denotes a three-dimensional camera in therecognition camera 9. - Meanwhile,
reference numeral 13 denotes a second board conveying/holding device equipped with a pair ofsupport rail units electronic circuit board 2 carried in from the first board conveying/holdingdevice 3 in the first mounting area. 201.Reference numeral 14 denotes a working head, to which a plurality of, for example, tencomponent suction nozzles 20 for sucking and holding an electronic component are replaceably attached in thesecond mounting area 202.Reference numeral 15 denotes an XY robot, which positions the workinghead 14 in thesecond mounting area 202 at a prescribed position in X-Y directions, which are two directions perpendicular to each other in thesecond mounting area 202.Reference numeral 17 denotes a nozzle station, which is disposed in the vicinity of acomponent feed unit 18A described later in thesecond mounting area 202, houses a plurality of kinds ofnozzles 20 suitable for a plurality of kinds of electronic components and replaces these nozzles withnozzles 20 attached to the workinghead 14 as required.Reference numerals second mounting area 202, that is, in the rear side with respect to the operator, and house taping components, which are components housed and held in a tape and are to be mounted on theboard 2.Reference numeral 18C denotes a component feed unit, which is disposed in the vicinity of thecomponent feed unit 18B in thesecond mounting area 202 and houses tray components, which are components housed and held on a tray and are to be mounted on theboard 2.Reference numeral 19 denotes a recognition camera, which is disposed on the side closer to the center of the component mounting work in the vicinity of thecomponent feed unit 18A in thesecond mounting area 202 area and picks up an image of a suction attitude of an electronic component sucked by thenozzle 20 of the workinghead 14.Reference numeral 19a inFig. 3 denotes a two-dimensional camera in therecognition camera 19.Reference numeral 19b denotes a three-dimensional camera in therecognition camera 19. - There is further included a first moving device composed of a
ball screw shaft 35,first nut 27,second nut 48,motor 40 for moving a support rail unit,selective lock mechanism 70, and so forth, which are described later. The first board conveying/holdingdevice 3 is moved by the first moving device in a direction crossing theboard 2 conveying direction between the board conveying position and a first work position, at which a prescribed work for theboard 2 held by the first board conveying/holdingdevice 3, for example, component mounting, is performed in the first mountingarea 201, for example, a first component mounting position. There is also included a second moving device composed of aball screw shaft 35,first nut 27,second nut 48,motor 40 for moving support rail unit,selective lock mechanism 70, and so forth, which are described later. The second board conveying/holdingdevice 13 is moved by the second moving device in a direction crossing theboard 2 conveying direction between the board conveying position and a second work position, at which a prescribed work for theboard 2 held by the second board conveying/holdingdevice 13, for example, component mounting, is performed in thesecond mounting area 202, for example, a second component mounting position. - The
XY robot axis drive units XY robot device 6 are fixed and disposed at front and rear end edges in the board conveying direction of the component mountingwork area 200 on a mountingapparatus base 16. TwoX-axis drive units axis drive units head 4 for moving in the first mountingarea 201 is disposed in theX-axis drive unit 6b movably in the X-axis direction. The workinghead 14 for moving in thesecond mounting area 202 is disposed in theX-axis drive unit 6c movably in the X-axis direction. Therefore, theXY robot 5 is constituted by the two Y-axis drive units apparatus base 16, theX-axis drive unit 6b movable in the Y-axis direction on the Y-axis drive units head 4 movable in the X-axis direction in theX-axis drive unit 6b. TheXY robot 15 is constituted by the two Y-axis drive units apparatus base 16, theX-axis drive unit 6c movable in the Y-axis direction on the Y-axis drive units head 14 movable in the X-axis direction in theX-axis drive unit 6c. - The above embodiment of the present invention is characterized by, first of all, the structure of the first and second board conveying/holding
devices support rail units devices device 3 and the second board conveying/holdingdevice 13 are positioned point-symmetrically with respect to thecentral point 102 of the component mountingwork area 200. Therefore, the structure of each board conveying/holding device is explained below with reference toFigs. 4 to 8 . - In
Figs. 4 to 8 ,reference numerals belt 500 for conveying and holding a board and convey and hold anelectronic circuit board 2. A front-sidesupport rail unit 21 of the pair ofsupport rail units support rail units board 2, that is, the locked side. A rear sidesupport rail unit 22 functions as a support rail unit on the moved side, which is moved according to the width of theboard 2. Furthermore, inFigs. 4 to 8 ,reference numeral 23 denotes a linear guide member, which is disposed in the vicinity of both left and right end portions of the board conveying/holdingdevice Fig. 6 and extends in a direction (Y direction) perpendicular to the longitudinal direction (X direction) of thesupport rail units Reference numeral 24 denotes a front side slider, which is disposed at each lower end portion of a leftend support pole 21a and a support pole 21b in the vicinity of a right end of the front sidesupport rail unit 21 inFig. 6 and moves linearly on eachlinear guide member 23 to guide so that thesupport rail unit 21 can move in parallel along the Y direction.Reference numeral 25 denotes a rear side slider, which is disposed at each lower end portion of a leftend support pole 22a and asupport pole 22b in the vicinity of a right end of the rear sidesupport rail unit 22 inFig. 6 and moves linearly on eachlinear guide member 23 to guide so that thesupport rail unit 22 can move in parallel along the Y direction.Reference numeral 35 denotes a ball screw shaft, which is disposed above eachlinear guide member 23 in the vicinity of both left and right end portions of the board conveying/holdingdevice Figs. 4 and6 and extends in a direction (Y direction) perpendicular to the longitudinal direction (X direction) of thesupport rail units device base 44.Reference numeral 40 denotes a motor for moving a support rail unit, which drives rotation of theball screw shaft 35 in the forward and reverse rotation directions. Thelinear guide member 23, thefront side slider 24, and therear slider 25 constitute a linear guide mechanism.Reference numeral 27 denotes a nut, which is rotatably attached to each end portion of thesupport pole 21a at the left end of thesupport rail unit 21 and the support pole 21b in' the vicinity of the right end via each bearing 47 as shown inFig. 7 and screw-threaded with theball screw shaft 35. Thenut 27 rotates integrally with asleeve 46 while the whole body thereof is covered with thesleeve 46 from outside with thenut 27 disabling relative rotation and is rotatably supported at thebearing 47 by thesleeve 46. Agear 28 is fixed to one end portion in the axial direction of thesleeve 46.Reference numeral 30 denotes a cylinder for a selective lock mechanism, which is attached to eachsupport pole 21a, 21b of thesupport rail unit 21 and moves a piston rod up and down. Arack gear 29 engagable with thegear 28 is fixed to an upper end of the piston rod of thecylinder 30 for the selective lock mechanism. When the piston rod rises and is positioned at the upper end position, therack gear 29 is engaged with thegear 28 to stop rotation of thenut 27. On the other hand, when the piston rod lowers and is positioned at the lower end position, apin 43 of the lower end of the piston rod penetrates thecylinder 30 downwards and is engaged with ahole 45 of the board conveyingdevice base 44 to fix thesupport rail unit 21 at the position and disable its movement. Thehole 45 of the board conveyingdevice base 44 is provided only at a position at which eachpin 43 can be inserted when thesupport rail unit 21 is positioned at the position of the origin P21 as an example of a reference position (the position of thesupport rail unit 21 shown with a dotted line inFig. 6 ). Apulley ball screw shafts belt 90 is placed across thesepulleys ball screw shafts motor 40, via thepulleys belt 90. When each ball screwshaft 35 rotates, thenut 27, which is rotatably supported by thebearing 47 and screw-threaded with each ball screwshaft 35, also rotates. Thus, while thenut 27 is rotating, no force along the Y-axis direction acts on the front-sidesupport rail unit 21. Therefore, the front-sidesupport rail unit 21 is not moved in the Y-axis direction. On the other hand, when thecylinder 30 is driven to raise the piston rod and thereby therack gear 29 is engaged with thegear 28, rotation of thenut 27 is regulated via thegear 28 and thesleeve 46. Therefore, a force along the Y-axis direction acts on thenut 27 in response to rotation of each ball screwshaft 35 and the front-sidesupport rail unit 21 is moved in the Y-axis direction. Thus, eachselective lock mechanism 70 is constituted by thegear 28, therack gear 29, and thecylinder 30. As a result, the front-sidesupport rail unit 21 is moved in parallel in the Y-axis direction when the rack gears 29, 29 are engaged with thegears selective lock mechanisms cylinder 30 is lowered by theselective lock mechanism pin 43 at the lower end of the piston rod penetrates thecylinder 30 downwards. When thesupport rail unit 21 is positioned at the origin position P21, thepin 43 is engaged with thehole 45 of the board conveyingdevice base 44. Thus, the front-sidesupport rail unit 21 is fixed so that thesupport rail unit 21 cannot be moved from the origin position P21. When engagement of therack gear gear nut support rail unit 21 is not moved along the Y-axis direction but is kept at the position. Therefore, the distance between one pair of thesupport rail units board 2, the front-sidesupport rail unit 21 is not moved along the Y-axis direction by theselective lock mechanism support rail unit 21 but is kept at the position. Thus, the front-sidesupport rail unit 21 can be functioned as asupport rail unit 21 on the reference side, that is, the locked side. - On the other hand,
reference numeral 48 denotes a nut, which is provided rotatably via each bearing 49 at each of lower end portions of asupport pole 22a at a left end of the rear-sidesupport rail unit 22 and asupport pole 22b in the vicinity of a right end thereof and screw-threaded with theball screw shaft 35 as shown inFig. 7 . Eachnut 48 rotates integrally with asleeve 50 disabling relative rotation while the whole body thereof is covered with thesleeve 50 from outside and is supported rotatably at thebearing 48 bysleeve 50. Agear 51 is fixed at one end portion of eachsleeve 50 in the axial direction. Thegear support pole 22a at the left end of the rear-sidesupport rail unit 22 and thesupport pole 22b in the vicinity of the right end thereof by abracket ball screw shafts support rail unit 22 is guided by thelinear guide members sliders - Furthermore,
reference numeral 99 denotes a belt drive shaft, which extends along the Y-axis direction, is provided to eachsupport rail unit belt 500 for placing and conveying aboard 2 via a pulley or the like synchronously in the forward and reverse directions.Reference numeral 42 denotes a belt drive motor, which drives thebelt 500 for placing and conveying theboard 2 synchronously in the forward and backward directions by driving forward and reverse rotation of thebelt drive shafts 99. - Furthermore, the board conveying
device base 44 on the right side is equipped with a front-side limitposition detecting sensor 400 for detecting a front-side limit position of the front-sidesupport rail unit 21, a front-side originposition detecting sensor 401 for detecting the origin position P21 of the front-sidesupport rail unit 21, acollision avoiding sensor 406 for stopping the rear-sidesupport rail unit 22 to approach the front-sidesupport rail unit 21 so as to prevent a collision of the front-sidesupport rail unit 21 and the rear-sidesupport rail unit 22 when adog 407 projected from thesupport pole 22b in the vicinity of the right end of the rear-sidesupport rail unit 22 is detected, a rear-side originposition detecting sensor 404 for detecting the origin position P22 as an example of the reference position of the rear-sidesupport rail unit 22, and a rear-side limitposition detecting sensor 405 for detecting the rear-side limit position of the rear-sidesupport rail unit 22. All of thesesensors control unit 1000 to input their respective detection results thereinto. - On the
support rail unit 21, a boardpassage detecting sensor 31 for detecting passage of anelectronic circuit board 2 is disposed at a right end portion, that is, at an end portion on theloader 1 side. Aboard stopper 32 for stopping theelectronic circuit board 2 at a prescribed position is disposed at a left end portion, that is, at an end portion on theunloader 11 side. A boardarrival detecting sensor 33 for detecting approach and arrival of theelectronic circuit board 2 to the prescribed position in the board conveying direction from theloader 1 towards theunloader 11 side is provided in the vicinity of theboard stopper 32. As shown inFig. 9 , acylinder 32D for the board stopper drive has an upper end position detecting sensor S32 for detecting an upper end position of the piston rod. Theboard stopper 32 is positioned at the raised position and kept in contact with theboard 2 while components are being mounted. - As shown in
Fig. 9 , the supportplate drive cylinder 39 has an upper limit position detecting sensor S39U for detecting an upper limit position of the piston rod and a lower limit position detecting sensor S39L for detecting a lower limit position thereof. - To mount electronic components on an
electronic circuit board 2 in high quality, theboard 2 needs to be supported from the lower direction. Accordingly, the board conveying/holding device has asupport plate 38, which is equal to the maximum-size board in size or larger and can be moved up and down. The required number of support pins 87 are provided on thesupport plate 38. Thesupport plate 38 is raised by the supportplate drive cylinder 39. The lower surface of theelectronic circuit board 2 is supported by the support pins 87 and theboard 2 are interposed between thesupport rail units - As shown in
Fig. 28 , each of the sensors and the drive units is connected to thecontrol unit 1000. Drive of each drive unit is controlled based on a prescribed mounting program. That is, those connected to the control unit 1000 include at least the board passage detecting sensor 31 (31-1, 31-2), board arrival detecting sensor 33 (33-1, 33-2), upper limit position detecting sensor S39U of the support plate drive cylinder 39, lower limit position detecting sensor S39L of the support plate drive cylinder 39, front-side limit position detecting sensor 400, front-side origin position detecting sensor 401, collision avoiding sensor 406, rear-side origin position detecting sensor 404, rear-side limit position detecting sensor 405, recognition camera 9, 19, XY robot 5, 15, working head 4, 14, loader 1, unloader 11, motor 40 for moving support rail units, belt drive motor 42, board stopper drive cylinder 32D, support plate drive cylinder 39, cylinder 30 for selective lock mechanism, database 1001 for storing information related to mounting operations or the like such as information about the size of a board onto which components are to be mounted or the like, information about the shape, height, and so forth of the components, information about positions at which the components to be mounted are to be mounted onto the board, mounting order, or the like, the shape of a component suction nozzle, information about the board conveying position of each support rail unit or the like, and operation unit 1002 for performing desired operations and so forth. - Operations of the electronic component mounting apparatus of the above embodiment constituted as above are explained with reference to operation explanatory views in
Figs. 10 to 17 and a timing chart inFig. 27 . The electronic component mounting apparatus is operated under the control of thecontrol unit 1000. -
Fig. 10 is a general layout plan showing operation of thesupport rail units component feed units recognition cameras heads suction nozzles Fig. 17 ), andboard conveying devices support rail units 21, 22 (seeFig. 18 ) are disposed point-symmetrically with respect to thecentral point 102 of the component mountingwork area 200. As described above, the component mountingwork area 200 is divided by a straight line passing through thecentral point 102 along the board conveying direction into two areas; the first mounting area 201 (lower half of the component mountingwork area 200 inFig. 10 ) and the second mounting area 202 (upper half of the component mountingwork area 200 inFig. 10 ). Thesupport rail units passage detecting sensor 31,board stopper 32, boardarrival detecting sensor 33, andsupport plate 38 are shown in the first mountingarea 201 as the support rail units 21-1, 22-1, board passage detecting sensor 31-1, board stopper 32-1, board arrival detecting sensor 33-1, and support plate 38-1, respectively, while shown in thesecond mounting area 202 as the support rail units 21-2, 22-2, board passage detecting sensor 31-2, board stopper 32-2, board arrival detecting sensor 33-2, and support plate 38-2, respectively. - In the first mounting
area 201, the support rail unit 21-1 on the locked side is moved in a range to the origin position P21-1 shown with a lower right solid line. The support rail unit 22-1 on the moved side is moved in a range to the origin position P22-1 shown with an upper right solid line. Meanwhile, in thesecond mounting area 202, the support rail unit 21-2 on the locked side is moved in a range to the origin position P21-2 shown with an upper left solid line. The support rail unit 22-2 on the moved side is moved in a range to the origin position P22-2 shown with a lower left solid line. -
Fig. 11 shows a state where the support rail units 21-1, 21-2 on the locked side and the support rail units 22-1, 22-2 on the moved side are not positioned at the origins while the component mounting apparatus is turned on. -
Fig. 12 shows a state where, after the component mounting apparatus is turned on, the support rail units 21-1, 21-2 on the locked side are moved to their respective origin positions P21-1, P21-2 at a low speed to return to the origins and locked at the origin positions P21-1, P21-2, and then the support rail units 22-1, 22-2 on the moved side are moved towards their respective origin positions P22-1, P22-2 at a low speed. - That is, in
Fig. 12 , in each mountingarea motor 40 for moving support rail units is driven and theball screw shafts gears selective lock mechanisms area 201, that is, the lower right side ofFig. 10 and the support rail unit 21-2 on the locked side on.the rear side of thesecond mounting area 202, that is, the upper left side ofFig. 10 are independently moved to the origin positions, at which theholes 45 of the board conveyingdevice base 44 are formed as shown inFigs. 6 and7 (lower right origin position P21-1 shown with the solid line inFig. 10 for the first mountingarea 201 and upper left origin position P21-2 shown with the solid line inFig. 10 for the second mounting area 202) at a low speed. The respective origin positions P21-1, P21-2 of the support rail units 21-1, 21-2 on the locked side are positioned closest to therecognition cameras component feed units area 201, the support rail unit 21-1 on the locked side and the support rail unit 22-1 on the moved side are integrally moved downward at a low speed as shown with a downward arrow inFig. 12 . Then, the movement of both the support rail units 21-1, 22-1 is stopped when the support rail unit 21-1 on the locked side is positioned at the origin position P21-1. In thesecond mounting area 202, the support rail unit 21-2 on the locked side and the support rail unit 22-2 on the moved side are integrally moved upward at a low speed as shown with an upward arrow inFig. 12 . Then, the movement of both the support rail units 21-2, 22-2 is stopped when the support rail unit 21-2 on the locked side is positioned at the origin position P21-2. - Subsequently, when the support rail units 21-1, 21-2 on the locked side are completely returned to their origins, the
cylinders pins holes device bases gears selective lock mechanisms pin 43 at the lower end of the piston rod of the selectivelock mechanism cylinder 30 is inserted and engaged with thehole 45 of the board conveyingdevice base 44. The support rail units 21-1, 21-2 on the locked side are fixed at the positions immovably. - Subsequently, when the front-side origin
position detecting sensor Fig. 27 ), a prescribed time period is measured by a timer T6 and then themotor 40 for moving support rail units is reverse-driven so that the support rail units 22-1, 22-2 on the moved side start moving towards their respective origin position P22-1, P22-2 in a direction reverse to the above at a low speed. That is, the support rail units 22-1, 22-2 on the moved side are first moved integrally with the support rail units 21-1, 21-2 on the locked side in the same arrow direction at a low speed by the low-speed movement of the support rail units 21-1, 21-2 on the locked side to their origin position side. Then, after the support rail units 21-1, 21-2 on the locked side are positioned at their respective origin positions P21-1, P21-2, themotor 40 for moving support rail units is driven to rotate in the reverse direction to rotate theball screw shafts Fig. 10 for the first mountingarea 201 and the lower left origin position P22-2 shown with the solid line inFig. 10 for second mounting area 202). - Subsequently, in
Figs. 13 and25 , when the rear-side originposition detecting sensors Fig. 13 . - Subsequently, while the support rail units 21-1, 21-2 on the locked side are fixed to their respective origin positions P21-1, P21-2 in
Fig. 14 similarly toFig. 13 , the support rail units 22-1, 22-2 on the moved side are moved from their origin positions P22-1, P22-2 towards the support rail units 21-1, 21-2 on the locked side according to the width of boards 2-1, 2-2 onto which components are to be mounted. Thus, adjustment of the distances between the support rail units 21-1, 22-1 and the support rail units 21-2, 22-2 is completed. At this time, since the widths of the boards 2-1, 2-2, onto which components are to be mounted subsequently, are stored in advance in thedatabase 1001, the movement amounts of the support rail units 22-1, 22-2 on the moved side is calculated in theoperation unit 1002 based on this information and information such as movement amounts of the support rail units 22-1, 22-2 on the moved side by rotation by themotor 40 for moving support rail units or the like. The amount of rotation of themotor 40 for moving support rail units is calculated, and the rotation driven by themotor 40 for moving support rail units based on this calculation result is controlled. The above operation can be performed in advance and only the operation result information can be stored in thedatabase 1001 and the rotation driven by themotor 40 for moving support rail units can also be controlled by utilizing this information. - Subsequently, after the adjustment of the distances between the support rail units 21-1, 22-1 and the support rail units 21-2, 22-2 is finished according to the widths of the boards 2-1, 2-2, onto which components are to be mounted, each
rack gear 29 is engaged with eachgear 28 by eachselective lock mechanism 70 and then the support rail units 21-1 on the locked side and 22-1 on the moved side are synchronously moved in one direction, that is, upward inFig. 15 by rotation of theball screw shafts device 3 as shown inFig. 15 . Similarly, in the second board conveying/holdingdevice 13, eachrack gear 29 is engaged with eachgear 28 by eachselective lock mechanism 70 and then the support rail units 21-2 on the locked side and 22-2 on the moved side are synchronously moved in one direction, that is, downward inFig. 15 by rotation of theball screw shafts device 13. Then, the support rail units 21-1 on the locked side and 22-1 on the moved side and the support rail units 21-2 on the locked side and 22-2 on the moved side are moved to a position (conveying position), at which the left and right board conveying/holdingdevices work area 200 in the mounting apparatus. Then, the second board conveying/holdingdevice 13 waits for the board 2-1 to be carried in from the first board conveying/holdingdevice 3, while the first board conveying/holdingdevice 3 waits for a board 2-0 to be carried in from theloader 1. - Subsequently, as shown in
Figs. 16 and24 , the first board conveying/holdingdevice 3 and the second board conveying/holdingdevice 13 are driven under the control of thecontrol unit 1000 so that the carrying-in of the board 2-1 from the first board conveying/holdingdevice 3 to the second board conveying/holdingdevice 13 is completed. Also, theloader 1 and the first board conveying/holdingdevice 3 are driven under the control of thecontrol unit 1000 so that the carrying-in of the board 2-0 fromloader 1 to the first board conveying/holdingdevice 3 is completed. Subsequently, the support rail units 21-1, 22-1 of the first board conveying/holdingdevice 3 holding the board 2-0 are moved downward inFig. 16 to a position closest to therecognition camera 9. The support rail units 21-2, 22-2 of the second board conveying/holdingdevice 13 holding the board 2-1 are moved upward inFig. 16 to each component mounting position (position, at which the support rail units 21-1, 22-1 on the locked side are positioned at their respective origin positions P21-1, P22-1) as an example of a work position positioned closest to therecognition camera 19. Here, the workingheads component feed units respective nozzles recognition cameras recognition camera electronic circuit board 2 when mounting is performed, the moving distance of the workinghead - On the other hand, when maintenance of the mounting apparatus is performed, the support rail units 21-1, 21-2 on the locked side and the support rail units 22-1, 22-2 on the moved side are moved to positions distant from the first and second component mounting positions and receded from above the support plate 3-8-1, 38-2 in
Figs. 17 and26 . Consequently, various maintenance works for the mounting apparatus, for example, replacement of support pins 87 or support plates 38-1, 38-2 for supporting anelectronic circuit board 2 from downward or replacement ofnozzles nozzle station - The conveyance flow of boards under the control of the
control unit 1000 is described in detail below with reference toFigs. 18 to 21 . -
Figs. 18 to 21 show a flow ofelectronic circuit boards 2 during production (component mounting). At a stage where the production is started, the support rail units 21-1, 21-2 on the locked side and the support rail units 22-1, 22-2 on the moved side are synchronously driven together.Figs. 22 and23 show timing charts in the board conveying operation. -
Fig. 18 shows positional relationship when component mounting production is finished. At this time, the electronic circuit board 2-0 to be produced next is ready on theloader 1. - First, as shown in the timing charts in
Figs. 22 and23 , after the component mounting production is finished, the lower limit position detecting sensors S39L, S39L detect that the support plates 38-1, 38-2 of the first and second board conveying/holdingdevices plate drive cylinders control unit 1000 and are positioned at their respective lower limit positions. When detection signals from the lower limit position detecting sensors S39L, S39L are input in thecontrol unit 1000, the boardstopper drive cylinder 32D is driven and a stopper 32-1, which is provided on the support rail unit 21-1 on the locked side of the first board conveying/holdingdevice 3 and positioned at a raised position during a mounting operation, lowers in the first board conveying/holdingdevice 3 so that theboard 2 becomes in a state where theboard 2 can be carried out. A stopper 32-2, which is provided on the support rail unit 21-2 on the locked side of the second board conveying/holdingdevice 13 and positioned at a raised position during a mounting operation, also lowers so that theboard 2 becomes in a state where theboard 2 can be carried out. - When the detection signals from the lower limit position detecting sensors S39L, S39L are input in the
control unit 1000, the boardstopper drive cylinder 32D is driven in the first board conveying/holdingdevice 3 as described above. In addition to this, in the first board conveying/holdingdevice 3, themotor 40 for moving support rail units is driven and theball screw shafts work area 200 as shown upward inFig. 18 . In the second board conveying/holdingdevice 13 as well, themotor 40 for moving support rail units is driven and theball screw shafts work area 200 as shown downward inFig. 18 . At this time, in the second board conveying/holdingdevice 13, when themotor 40 for moving support rail units is driven, thebelt drive motor 42 is also driven at the same time and conveyance is started so that the board 2-2 positioned on the right end portion side in the second board conveying/holdingdevice 13 is moved towards the left end portion. When the board passage detecting sensor 31-2 detects the board 2-2, whether themotor 40 for moving support rail units is driven is judged. When thismotor 40 is driven, drive of thebelt drive motor 42 is stopped. When thismotor 40 is not driven, drive of thebelt drive motor 42 may be continued. This is for the purpose of conveying the board 2-2 only on the support rail units 21-2, 22-2 of the second board conveying/holdingdevice 13 to shorten the conveying time from the second board conveying/holdingdevice 13 to the unloader side. Consequently, the board 2-2 is not protruded from the support rail units 21-2, 22-2 during the movement of the support rail units 21-2, 22-2. Also, after themotor 40 for moving support rail units is driven and then a prescribed time passes, that is, before the support rail units 21-2, 22-2 are positioned at the board conveying position, drive of thebelt drive motor 42 is suspended once and the motor gets ready for the subsequent board conveying operation at the board conveying position. -
Fig. 19 shows a state where the support rail units 21-1, 22-1 of the first board conveying/holdingdevice 3 and the support rail units 21-2, 22-2 of the second board conveying/holdingdevice 13 arrive at the board conveying positions in the central portion of the component mountingwork area 200 and are stopped at their respective board conveying positions. In this state, theloader 1, the support rail units 21-1, 22-1 of the first board conveying/holdingdevice 3, the support rail units 21-2, 22-2 of the second board conveying/holdingdevice 13, and theunloader 11 are aligned in one line. Here, theelectronic circuit board 2 flows from right to left. - Subsequently, it is detected that the support rail units 21-2, 22-2 of the second board conveying/holding
device 13 are moved from the second component mounting position to the board conveying position, that is, drive of themotor 40 for moving support rail units of the second board conveying/holdingdevice 13 is stopped. Then, thebelt drive motor 42 is driven and the board 2-2 produced (components-mounted) in the second board conveying/holdingdevice 13 is carried out from the second board conveying/holdingdevice 13 to theunloader 11. Completion of the carrying-out is determined when the board passage detecting sensor 31-2 detects that the board 2-2 passes and is not present. - When the completion of the carrying-out of the board is determined by the
control unit 1000, themotor 40 for moving support rail units of the first board conveying/holdingdevice 3 is driven and conveyance of the board 2-1 produced in the first board conveying/holdingdevice 3 from the first board conveying/holdingdevice 3 to the second board conveying/holdingdevice 13 is started. - Subsequently, as shown in
Fig. 20 , when the board arrival detecting sensor 33-2 detects arrival and passage of the board 2-1 in the second board conveying/holdingdevice 13, drive of thebelt drive motor 42 is stopped, while the boardstopper drive cylinder 32D is driven and the board stopper 32-2 is raised to the upper limit position. The upper end position detecting sensor S32 detects that the board stopper 32-2 reaches the upper limit position and is prepared to stop the board 2-1. Meanwhile, the board 2-1 is conveyed in a direction from right to left by drive of thebelt drive motor 42. After the board arrival detecting sensor 33-2 detects arrival and passage of the board 2-1 and a lapse of a prescribed time (for example, 0.1 ms) is measured by a timer T4 so that a delay is achieved by time required for the board stopper 32-2 to be raised to the upper limit position, rotation of thebelt drive motor 42 is driven in the reverse direction so that thebelt 500 attached to the support rail units 21-2, 22-2 of the second board conveying/holdingdevice 13 is run in a direction from left to right and the board 2-1 is conveyed in the reverse direction. Then, the right side end edge of the board 2-1 is brought into contact with the board stopper 32-2 and the board arrival detecting sensor 33-2 detects arrival of the board 2-1. After the arrival is detected and a prescribed time period is measured by the timer T3, drive of thebelt drive motor 42 is stopped. Thebelt drive motor 42 is thus driven in excess so that the right side end edge of the board 2-1 can be brought into contact with the board stopper 32-2 more reliably. - Meanwhile, after the board arrival detecting sensor 33-2 detects the arrival and passage of the board 2-1, the
motor 40 for moving support rail units is driven and the support rail units 21-2, 22-2 of the second board conveying/holdingdevice 13 start moving from the board conveying position to the second component mounting position, that is, towards therecognition camera 19. That is, conveyance of the board 2-1 on the support rail units 21-2, 22-2 and movement of the support rail units 21-2, 22-2 themselves from the board conveying position to the second component mounting position are carried out at the same time. Thus, the arrival of the board 2-1 on the support rail units 21-2, 22-2 at the prescribed position and the arrival of the support rail units 21-2, 22-2 at the second component mounting position are both finished and the board conveying operation is finished. That is, when the reverse drive of thebelt drive motor 42 is stopped and the drive of themotor 40 for moving support rail units is stopped, a termination of the board conveying operation is determined and the supportplate drive cylinder 39 is driven so that the support plate 38-2 is raised. Then, the board 2-2 is supported by the support plate 38-2. - Some time period is required between the board conveying operations. During this time period, replacement of
nozzles 20 required for production or the like is performed in thenozzle station 17 or the like. In general, nozzle replacement is performed a plurality of times to produce oneelectronic circuit board 2, and nozzle replacement is performed since the nozzles are always returned to original nozzles at the beginning of production ofboards 2. - Meanwhile, in the first board conveying/holding
device 1, when the board passage detecting sensor 31-1 confirms passage of the board 2-0 from theloader 1, the boardstopper drive cylinder 32D is driven and the board stopper 32-1 is raised to the upper limit position. The upper end position detecting sensor S32 detects that the board stopper 32-2 reaches the upper limit position and preparation for carrying in the board is completed. Meanwhile, after a lapse of a prescribed time is measured by a timer T1, the rotation speed of thebelt drive motor 42 is reduced so that an impact is reduced when the board 2-0 is brought into contact with the board stopper 32-1. Then, the left end edge of the board 2-0 is brought into contact with the board stopper 32-1 and arrival of the board 2-0 is detected and confirmed by the board arrival detecting sensor 33-1. After the arrival of the board is detected by the board arrival detecting sensor 33-1 and a lapse of a prescribed time is measured by the timer T1, drive of thebelt drive motor 42 is stopped. Thebelt drive motor 42 is thus driven in excess so that the left side end edge of the board 2-0 is brought into contact with the board stopper 32-1 more reliably. - Meanwhile, after the board passage detecting sensor 31-1 confirms the passage of the board 2-0, the
motor 40 for moving support rail units is driven and the support rail units 21-1, 22-1 start moving from the board conveying position towards the first component mounting position, that is; towards therecognition camera 9. As in the case of the support rail units 21-2, 22-2 of the second board conveying/holdingdevice 13, conveyance of the board 2-0 and movement of the support rail units 21-1, 22-1 are carried out at the same time. When both the operations are completed, the board conveying operation is finished. That is, when drive of thebelt drive motor 42 is stopped and drive of themotor 40 for moving support rail units is stopped, a termination of the board conveying operation is determined and the supportplate drive cylinder 39 is driven so that the support plate 38-1 is raised. Then, the board 2-0 is supported by the support plate 38-1. - Some time period is required during the board conveying operations. During this time period, replacement of
nozzles 10 required for production or the like is performed in thenozzle station 7 or the like. -
Fig. 21 shows a state where the board conveying operation is completed and that the production of the board, that is, component mounting operation is started as in the case shownFig. 16 . - Subsequently, when the production is completed, as explained with reference to
Figs. 18 to 20 , thesupport rail units device Fig. 21 , and the mounting operation is continued. Thus, components are successively mounted onto boards. - According to the above embodiment, in one component mounting apparatus, the component mounting
work area 200 of theboard 2 is divided into two areas, the first mountingarea 201 and thesecond mounting area 202, assuming the board conveyance path from the board carrying-in side to the board carrying-out side as a center. In the first mountingarea 201, the board 2-1 is carried in from theloader 1 to the first mountingarea 201. The board 2-1 is positioned and held for a mounting operation at a portion closest to thecomponent feed unit 8A and therecognition camera 9 as an example of the first component recognition unit disposed at an end portion of the first mountingarea 201 along a direction of the board conveyance path. Subsequently, in the first mountingarea 201, components are sucked and held from thecomponent feed units shaded area 2A inFig. 2 ) of the board 2-1 on the front-side with respect to an operator on the side closer to the firstcomponent feed unit 8A. Subsequently, after the mounting work in the first mountingarea 201 is finished, the board 2-1 is positioned and held for a mounting operation at a portion closest to thecomponent feed unit 18A of thesecond mounting area 202 and therecognition camera 19 as an example of the second component recognition unit to mount components onto the board 2-1. Subsequently, in thesecond mounting area 202, components are sucked and held from thecomponent feed units shaded area 2A inFig. 2 ) on the rear side viewed from the operator on the side closer to thecomponent feed unit 18A of the board 2-1. Subsequently, after the mounting work is finished in thesecond mounting area 202, the board 2-1 is carried out from thesecond mounting area 202. As a result, the shortest distances between theboard 2 positioned at each mountingarea component feed unit recognition camera - That is, one component mounting
work area 200 of one mounting apparatus is divided into two areas, the first mountingarea 201 and thesecond mounting area 202 so that twoboards 2 are placed and components can be mounted. Then, the board are moved back and forth in each mounting area so that components are fed, recognized, and mounted on the end edge side of the mounting area close to the component feed unit. For example, theboard 2 in the first mountingarea 201 is positioned at the front-side end edge of the mounting area while theboard 2 in thesecond mounting area 202 is positioned at the rear-side end edge of the mounting area. Therefore, therecognition camera electronic circuit board 2 when mounting operations are performed. Consequently, the moving distance of the workinghead component feed units Figs. 2 and3 . Therefore, therecognition cameras work area 200 while the position where theboard 2 is to be positioned is located on the central side of the component mountingwork area 200 in the board conveying/holdingdevice work area 200 is divided into two, the moving distance of the workingheads - Since two
boards work area 200 in one component mounting apparatus, a mounting efficiency per unit area can be improved as compared with a conventional device in which only oneboard 2 is positioned. - Furthermore, due to the zigzag positions of the
boards component feed unit board 2 is placed. The component feed unit constituted by the tray-type component feed unit or the like can be located closer to the board and thus component feeding efficiency can be improved. - Furthermore, according to the above embodiment, when maintenance of the mounting apparatus is performed, the support rail units 21-1, 21-2 on the locked side and the support rail units 22-1, 22-2 on the moved side are moved to positions that are distant from the first and second component mounting positions, respectively, and receded from above the support plates 38-1, 38-2. Consequently, when various maintenance works for the mounting apparatus such as, for example, replacement of the support pins 87 or the support plates 38-1, 38-2 for supporting the
electronic circuit board 2 from downward or replacement of thenozzles nozzle station support plates 38 can be easily replaced in a batch and thus the time required to change positions of the support pins 87 can be shortened. - Furthermore, if operations are controlled and the sensors and the stoppers are arranged so that the board is placed in the board conveying direction in the second board conveying/holding
device 13 once and then theboard 2 is moved in a direction reverse to the board conveying direction and positioned when only arrangement of the first board conveying/holdingdevice 3 and the second board conveying/holdingdevice 13 is changed point-symmetrically and theboard 2 is positioned in the second board conveying/holdingdevice 13, the first board conveying/holdingdevice 3 and the second board conveying/holdingdevice 13 can have exactly the same structure and becomes in common with each other. - Furthermore, by the locking operation and the unlocking operation of the
selective lock mechanism 70, a Y-direction moving operation, in which thesupport rail unit 21 on the locked side is moved integrally with thesupport rail unit 22 on the moved side, and a distance adjusting operation according to the board width, in which thesupport rail unit 21 on the locked side is fixed and only thesupport rail unit 22 on the moved side is moved, can be selected. The drive shaft for the distance adjustment according to the board width for adjusting the distance between thesupport rail units - Furthermore, the locking operation and the unlocking operation of the
selective lock mechanism lock mechanism cylinder 30. As a result, the Y-direction moving operation, in which thesupport rail unit 21 on the locked side is moved integrally with thesupport rail unit 22 on the moved side, and the distance adjusting operation according to the board width, in which thesupport rail unit 21 on the locked side is fixed and only thesupport rail unit 22 on the moved side is moved, can be easily and reliably selected. - Furthermore, since one
motor 40 is driven to drive rotation of twoball screw shafts support rail units ball screw shafts support rail units - Furthermore, since the
support plate 38 having the support pins 87 and thesupport rail units support plate 38 and the support rail unit are integrally moved. Thus, the moving operation can be faster at a lower cost. - When the
board positioning stopper 32 and the boardarrival detecting sensor 33 are disposed at the front and rear end portions in the board conveying direction in each board conveying/holdingdevice board 2 can be positioned at both front and rear end portions in the board conveying direction. Therefore, in each mountingarea board 2 is positioned, can be arbitrarily determined based on information such as the size of theboard 2, distribution of positions at which components are mounted, distribution of positions at which components are sucked from the component feed unit and held and so forth. - Furthermore, when component mounting in the first board conveying/holding device and component mounting in the second board conveying/holding device are performed simultaneously, mounting operations can be performed more efficiently and thus mounting time can be shortened.
- Furthermore, when board conveyance from the loader to the first board conveying/holding device, board conveyance from the first board conveying/holding device to the second board conveying/holding device, and board conveyance from the second board conveying/holding device to the unloader are performed simultaneously, board conveying operations can be performed more efficiently and thus the mounting time can be shortened.
- It is noted that the present invention is not limited to the above embodiment, but can be applied in other various aspects.
- For example, due to the zigzag positions of the
boards component feed unit board 2 is placed, an automatictray replacement device 300 may be provided to automatically replace the tray-typecomponent feed unit 18C as shown with an alternate long and two dot-chain line inFig. 3 . Furthermore, this not specifically shown, but, while the tray-typecomponent feed unit 8C is manually placed by an operator, the automatictray replacement device 300 may be provided to automatically replace the tray-typecomponent feed unit 8C as in the case of the tray-typecomponent feed unit 18C. Furthermore, automatic component feed unit replacement devices may be provided for othercomponent feed units component feed units - Furthermore, the component mounting
work area 200 of the mounting apparatus is divided into two areas, the first mountingarea 201 and thesecond mounting area 202, along the component conveying direction. However, the area does not need to be evenly divided into two areas, but may be divided into two areas in arbitrary proportions. - Furthermore, if mounting operation in the first mounting
area 201 and mounting operation in thesecond mounting area 202 can interfere each other due to the size of the mounting areas or the board, operations may controlled by thecontrol unit 1000 so that respective mounting operations may be performed independently in a non-interference area, whereas either one mounting operation is on standby in an interference area. - Furthermore, the component mounting position is not limited to the origin position of one
support rail unit 21 closer to therecognition camera component feed unit - Furthermore, on the
support rail units board 2 is positioned is not limited to either one end portion, but may be positioned in the central portion by utilizing theboard stopper 32 or the like. Furthermore, in the above embodiment, theboard 2 is positioned at the left side end portion in the first board conveying/holdingdevice 3, while theboard 2 is positioned at the right side end portion in the second board conveying/holdingdevice 13. However, as required, theboard 2 may be positioned at the right side end portion in the first board conveying/holdingdevice 3, while theboard 2 may be positioned at the left side end portion in the second board conveying/holdingdevice 13. In this case, at least theboard stoppers 32 are preferably positioned on both left and right sides of each board conveying/holding device as shown with solid lines and chain lines inFigs. 2 and8 . - Thus, the position at which the
board 2 is positioned on thesupport rail unit board 2, positions at which components are mounted on theboard 2, positions of therecognition cameras component feed units component feed units - Furthermore, two ball screw shafts for moving
support rail units device - Furthermore, as shown in
Figs. 29 to 32 , aboard conveying device 3A, which is fixed in the vicinity of thecomponent feed unit 8C of the first board conveying/holdingdevice 3, performs only conveyance of the board, and cannot move in the Y-axis direction, may be disposed, while aboard conveying device 13A, which is fixed in the vicinity of thecomponent feed unit 18C of the second board conveying/holdingdevice 13, performs only conveyance of the board, and cannot move in the Y-axis direction, may be disposed. Consequently, when mounting operation in the first board conveying/holdingdevice 3 is finished and mounting operation is not finished on the side of the second board conveying/holdingdevice 13, while the first board conveying/holdingdevice 3 is disposed adjacent to theboard conveying device 3A as shown inFig. 31 , a board 2-1 held by the firs.t board conveying/holdingdevice 3 is carried out to theboard conveying device 3A and then carried out further to theunloader 11, while a new board 2-0 can be carried in from theloader 1 to the first board conveying/holdingdevice 3. Furthermore, when mounting operation in the second board conveying/holdingdevice 13 is finished and mounting operation on the side of the first board conveying/holdingdevice 3 is not finished, while the second board conveying/holdingdevice 13 is disposed adjacent to theboard conveying device 13A as shown inFig. 32 , a board 2-2 held by the second board conveying/holdingdevice 13 can be carried out to theunloader 11, while a new board 2-0 can be carried in from theloader 1 via theboard conveying device 13A to the second board conveying/holdingdevice 13. It is noted that theloader 1 and theunloader 11 are preferably moved between the positions shown with dotted lines and solid lines, respectively, in the Y-axis direction. - Furthermore, when the respective support rail units 121-1, 122-1, 121-2, 122-2 of the first board conveying/holding
device 3 and the second board conveying/holdingdevice 13 have a length equal to or longer than the width of the component mountingwork area 200 along the board conveying direction as shown inFig. 33 , boards can be carried in and out irrespective of mounting operation in the other board conveying/holding device as in the case of the modifications inFigs. 29 to 32 . - Furthermore, the
selective lock mechanism 70 does not need to be positioned on the side of onesupport rail unit 21, but may be disposed at the othersupport rail unit 22 as well, as shown inFig. 34 and thus both of thesupport rail units area 201, but can be performed by fixing the rear-side support rail unit 22-1 with respect to the rear-side origin position and moving the front-side support rail unit 21-1. Therefore, when the board conveying direction is changed to a direction reverse to that in the above embodiment or the like, as described above, the reference position of thesupport rail units - It is noted that the
selective lock mechanism 70 is not limited to a gear mechanism composed of the rack gear and the gear described above, but a clutch mechanism or the like can also be employed. - Furthermore,
Fig. 36 shows a component mounting apparatus according to yet another embodiment of the present invention. In this component mounting apparatus, while the first and second board conveying/holdingdevices long board 2G placed across the first and second board conveying/holdingdevices 3, 13 (shown with a shaded portion in the figure) is carried in and the first and second board conveying/holdingdevices area 201 or thesecond mounting area 202 in parallel to mount components. In the example inFig. 36 , the first and second board conveying/holdingdevices area 201 and components held from thecomponent feed units head 4 are mounted onto thelong board 2G placed across the first and second board conveying/holdingdevices devices devices second mounting area 202 and components held from thecomponent feed units head 14 are mounted onto thelong board 2G placed across the first and second board conveying/holdingdevices devices reference numeral 32G denotes a board stopper for positioning when thelong board 2G is carried into the first and second board conveying/holdingdevices Fig. 2 , the first and second board conveying/holdingdevices area 201 and thesecond mounting area 202. However, when thelong board 2G placed across the first and second board conveying/holdingdevices devices - It is noted that arbitrary embodiments among the above various embodiments can be appropriately combined to exert their respective effects.
- According to one aspect of the present invention, the selective lock mechanism releases the engagement with the first nut of the first rail-like holding member and relative rotation of the first nut relative to the first rail-like holding member is allowed. Then, by rotating the screw shaft, only the second rail-like holding member is moved and the position of the second rail-like holding member relative to the first rail-like holding member is changed, while the selective lock mechanism is engaged with the first nut of the first rail-like holding member to thereby rotate the screw shaft so that the first rail-like holding member and the second rail-like holding member can be integrally moved in parallel. Therefore, only by performing a locking operation and an unlocking operation of the selective lock mechanism, a gap changing operation for changing the position of the second rail-like holding member relative to the first rail-like holding member and a moving operation for integrally moving the first rail-like holding member and the second rail-like holding member in parallel can be performed selectively, reliably and easily. After the plate-like member is carried into the conveying position, it can be moved to a desired work position and held and thus a desired work can be performed efficiently. At the same time, after the desired work is finished, the plate-like member can be carried out to the conveying position and thus the plate-like member can be carried in, held, and carried out efficiently and rapidly.
- According to another aspect of the present invention, one component mounting work area of one mounting apparatus is divided into two areas, a first mounting area and a second mounting area so that two boards are placed to mount components thereon. Then, the board is moved forward and backward at each mounting area so that components are fed, recognized, and mounted on the end edge side of the mounting area close to the component feed unit. For example, the board in the first mounting area is positioned at the front-side end edge of the mounting area, while the board in the second mounting area is positioned at the rear-side end edge of the mounting area. Therefore, the recognition unit and the electronic circuit board can approach each other to have the shortest distance therebetween irrespective of the size of the electronic circuit board when a mounting operation is performed. Consequently, the moving distance of a member for sucking and holding component, for example, a working head, that is, the distances between positions for three operations, suction, recognition, and mounting of components are minimized. Thus, the mounting time can be shortened and the production efficiency can be improved. In particular, when components are conventionally mounted on a board in the vicinity of the board conveying position, the distances between positions for three operations, suction, recognition, and mounting of components are long for a small board and thus the mounting time are long. In the present invention, however, whether the board is small or large, the board is positioned for mounting operations so that the distances between positions for three operations, suction, recognition, and mounting of components becomes short. Therefore, the mounting time can be substantially reduced. In particular, when the component feed units are disposed almost at the whole end edge along the board conveying direction in the component mounting work area in each mounting area, the recognition unit is disposed on the central side of the component mounting work area and a position at which the board is positioned in each board conveying/holding device is positioned on the central side of the component mounting work area so that the distances between positions for three operations, suction, recognition, and mounting of components becomes shorter. Thus, the mounting time can be further improved. Furthermore, since one component mounting work area is divided into two, the moving distance of the working heads is reduced and thus the mounting time can be improved.
- Furthermore, when two boards are positioned diagonally, that is, in zigzag, in one component mounting work area in one component mounting apparatus, a mounting efficiency per unit area can be improved as compared with a conventional device, in which only one board is placed.
- Furthermore, due to the zigzag positions of the boards in one component mounting apparatus, other component feed units such as a tray-type
component feed unit board 2 is placed. In this case, the component feed unit constituted by the tray-type component feed unit or the like can be positioned closer to the board and thus component feeding efficiency can be improved. - Furthermore, when maintenance of the mounting apparatus is performed, rail-like holding members on the locked side and rail-like holding members on the moved side are moved to positions that are distant from the component mounting positions and receded from above the support plate for supporting each other from downward. Consequently, in this case, when various maintenance works for the mounting apparatus such as, for example, replacement of the support pins or the support plates for supporting an
electronic circuit board 2 or replacement of the nozzles for sucking and holding components in the nozzle station can be easily performed without trouble. Furthermore, the support plates can be easily replaced in a batch and thus time required to change positions of the support pins can be shortened. - Furthermore, if operations are controlled and sensors and stoppers are positioned so that only the positions of the first board conveying/holding device and the second board conveying/holding device are changes and the board is placed in the board conveying direction in the second board conveying/holding device once and then the board is moved in a direction reverse to the board conveying direction and positioned when the board is positioned in the second board conveying/holding device, the first board conveying/holding device and the second board conveying/holding device have exactly the same structure and become in common with each other.
- Furthermore, by including the selective lock mechanism to perform the locking operation and the unlocking operation, the Y-direction moving operation in which a rail-like holding member on the locked side is moved integrally with rail-like holding member on the moved side, and the distance (width) adjusting operation according to the board width in which the rail-like holding member on the locked side is fixed and only the rail-like holding member on the moved side is moved, can be selected. The drive shaft for the distance adjustment according to the board width for adjusting the distance between the first and second rail-like holding members according to the board width and the drive shaft for conveying the board can be commonly used (unified). Therefore, the number of the drive shafts can be reduced. Thus, the drive mechanism for the distance adjustment according to the board width and the drive mechanism for conveying the board can be simplified.
- Furthermore, when one motor is driven to drive rotation of two ball screw shafts synchronously and move the first and second rail-like holding members, the two ball screw shafts can be easily driven synchronously and the first and second rail-like holding members can be reliably moved in parallel.
- Furthermore, when the support plate having the support pins and the first and second rail-like holding members are separated and independently driven, the movement mechanism is made lighter and simplified as compared with the case where the support plate and the first and second rail-like holding member, are integrally moved. Thus, the moving operation can be faster at a lower cost.
- When the board positioning stopper and the board arrival detecting sensor are disposed at the front and rear end portions in the board conveying direction in each board conveying/holding device, the board can be positioned at any one of the front and rear end portions in the board conveying direction. Therefore, in each mounting area, a board positioning position at which the board is positioned, can be arbitrarily determined based on information such as the size of the board, distribution of positions at which components are mounted, distribution of positions at which components are sucked from the component feed unit and held, and so forth.
- Furthermore, when component mounting in the first board conveying/holding device and component mounting in the second board conveying/holding device are performed simultaneously, the mounting operations can be performed more efficiently and thus the mounting time can be improved.
- Furthermore, when board conveyance from the loader to the first board conveying/holding device, board conveyance from the first board conveying/holding device to the second board conveying/holding device, and board conveyance from the second board conveying/holding device to the unloader are performed simultaneously, the board conveying operations can be performed more efficiently and thus the mounting time can be improved.
- According to another aspect of the present invention, the two plate-like member conveying/holding devices, that is, the first plate-like member conveying/holding device and the second plate-like member conveying/holding device are disposed adjacent to each other and a plate-like member to be subjected to a prescribed work is carried in or out at the plate-like member conveying position in the work device. After the plate-like member is carried in, the devices hold the plate-like members and move to their respective work positions so that they can independently perform the prescribed work. Therefore, the plate-like members can be carried in and out at the plate-like member conveying positions, while the work for the plate-like members can be performed at the work positions. That is, respective operations can be performed at optimal positions. Therefore, work efficiency of each operation can be improved and there is no portion which is used only for plate-like member conveying operation and cannot be used for work operations. Thus, whole the installation area of the work device can be effectively utilized.
- Although the present invention has been, fully described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be noted that various changes and modifications are apparent to those skilled in the art. Such changes and modifications are to be understood as included within the scope of the present invention as defined by the appended claims.
Claims (31)
- A device for conveying and holding a plate-like member, comprising:a first rail-like holding member (21) and a second rail-like holding member (22), each including a conveying member (500) for conveying the plate-like member (2) so that the plate-like member can be carried in and out and held;a ball screw shaft (35) which is disposed to extend in a direction perpendicular to a longitudinal direction of the first rail-like holding member and the second rail-like holding member and moves the second rail-like holding member or moves the first rail-like holding member and second rail-like holding member in parallel;a rotation drive unit (40) which drives rotation of the ball screw shaft;a first nut (27) which is attached rotatably relative to the first rail-like holding member and screw-threaded with the screw shaft;characterized by
a second nut (48) which is fixedly attached to the second rail-like holding member and screw-threaded with the screw shaft; and
a selective lock mechanism (70) which can alternatively select an operation of engaging with the first nut of the first rail-like holding member to stop rotation of the first nut and an operation of releasing the engagement with the first nut of the first rail-like holding member to allow the first nut to rotate relatively to the first rail-like holding member,
wherein after the selective lock mechanism releases the engagement with the first nut of the first rail-like holding member to allow the first nut to rotate relatively to the first rail-like holding member, only the second rail-like holding member is moved by rotating the screw shaft, and a position of the second rail-like holding member relative to the first rail-like holding member is changed, while, after the selective lock mechanism is engaged with the first nut of the first rail-like holding member, the first rail-like holding member and the second rail-like holding member are integrally moved in parallel by rotating the screw shaft. - A device for conveying and holding a plate-like member according to Claim 1, wherein the rotation drive unit is one motor for driving forward and reverse rotation of the screw shaft.
- A device for conveying and holding a plate-like member according to Claim 1, wherein the second nut (48) screw-threaded with the screw shaft is not attached fixedly to the second rail-like holding member, but attached rotatably relative to the second rail-like holding member, while the selective lock mechanism (70) can select alternatively an operation of engaging with the second nut of the second rail-like holding member to stop rotation of the second nut or an operation of releasing engagement with the second nut of the second rail-like holding member to allow the second nut to rotate; and
the selective lock mechanism releases the engagement with the first nut of the first rail-like holding member to allow the first nut to rotate relatively to the first rail-like holding member and then rotates the screw shaft to move only the second rail-like holding member relatively to the first rail-like holding member, or the selective lock mechanism releases the engagement with the second nut of the second rail-like holding member to allow the second nut to rotate relatively to the second rail-like holding member and then rotates the screw shaft to move only the first rail-like holding member relatively to the second rail-like holding member so that a gap distance between the first rail-like holding member and the second rail-like holding member is changed, while the selective lock mechanism engages with the first nut of the first rail-like holding member and the second nut of the second rail-like holding member and then rotates the screw shaft so that the first rail-like holding member and the second rail-like holding member are integrally moved in parallel. - A device for conveying and holding a plate-like member according to any one of Claims 1 to 3, further comprising a linear guide mechanism (23, 24, 25), which is disposed to extend in parallel to the screw shaft in a direction perpendicular to an axial direction of each of the rail-like holding members and guides parallel movement of the two rail-like holding members.
- A device for conveying and holding a plate-like member according to any one of Claims 1 to 3, wherein the selective lock mechanism engages with the first nut of the first rail-like holding member to rotate the screw shaft and then the first rail-like holding member and the second rail-like holding member are integrally moved in parallel so that, first, the first rail-like holding member is positioned at a reference position and then the selective lock mechanism releases the engagement with the first nut of the first rail-like holding member to allow the first nut to rotate relatively to the first rail-like holding member and then rotates the screw shaft so that only the second rail-like holding member is moved and a position of the second rail-like holding member relative to the first rail-like holding member at the reference position is changed to adjust the gap between the first rail-like holding member and the second rail-like holding member, and
then, the selective lock mechanism engages with the first nut of the first rail-like holding member and then rotates the screw shaft so that the first rail-like holding member and the second rail-like holding member are integrally moved in parallel while the adjusted gap is maintained. - A device for conveying and holding a plate-like member according to any one of Claims 1 to 3, further comprising a stopper (32) which is brought into contact with the plate-like member to position and hold the plate-like member at the prescribed position when the plate-like member is conveyed between the first rail-like holding member and the second rail-like holding member by the conveying member.
- A component mounting apparatus equipped with a device for conveying and holding a plate-like member, wherein the plate-like member is a board onto which components are to be mounted, two of the devices for conveying and holding a plate-like member according to any one of Claims 1 to 3 are used as board conveying/holding devices for conveying and holding the board in the component mounting apparatus for mounting the components onto the board, a component mounting work area (200) in the component mounting apparatus, in which the components are mounted, is divided into a first mounting area (201) and a second mounting area (202) along the board conveying direction, one of the devices for conveying and holding a plate-like member is used as a first board conveying/holding device in the first mounting area and the other device for conveying/holding a plate-like member is used as a second board conveying and holding device in the second mounting area, and each board conveying/holding device is independently driven in each mounting area.
- A component mounting apparatus equipped with a device for conveying and holding a plate-like member according to Claim 7, wherein a first component mounting position of the first board conveying/holding device in the first mounting area and a second component mounting position of the second board conveying/holding device in the second mounting area are disposed in zigzag so as to be diagonally opposed to each other.
- A component mounting apparatus equipped with a device for conveying and holding a plate-like member according to Claim 8, wherein a first component feed unit (8A, 8B) for feeding the components to be mounted onto the board at an end edge portion in the first mounting area on an opposite side of the second mounting area, and a first component recognition unit (9) is disposed in the vicinity of the first component feed unit, and
a second component feed unit (18A, 18B) for feeding the components to be mounted onto the board at an end edge portion in the second mounting area on an opposite side of the first mounting area, and a second component recognition unit (19) is disposed in the vicinity of the second component feed unit. - A component mounting apparatus equipped with a device for conveying and holding a plate-like member according to Claim 9, wherein the first component feed unit, the first component recognition unit, the second component feed unit, and the second component recognition unit are disposed substantially point-symmetrically with respect to a center of the whole component mounting work area combining the first mounting area and the second mounting area.
- A component mounting apparatus equipped with a device for conveying and holding a plate-like member according to Claim 9, wherein the first component mounting position of the first board conveying/holding device in the first mounting area is determined in consideration to a distance between the first component feed unit and the first component recognition unit, while the second component mounting position of the second board conveying/holding device in the second mounting area is determined in consideration to a distance between the second component feed unit and the second component recognition unit.
- A component mounting apparatus equipped with a device for conveying and holding a plate-like member according to Claim 9, wherein the first component feed unit and the second component feed unit are component feed units for housing taping components to be mounted onto the board, which are the components housed and held in a tape.
- A component mounting device equipped with a device for conveying and holding a plate-like member according to Claim 7, wherein the first component mounting position of the first board conveying/holding device in the first mounting area and the second component mounting position of the second board conveying/holding device in the second mounting area are disposed in zigzag so as to be diagonally opposed to each other, a tray-type component feed unit (8C) in which the components to be mounted onto the board are housed on a tray, is disposed at a position other than the first component mounting position in the first mounting area, and another tray-type component feed unit (18C) in which the components to be mounted onto the board are housed on a tray, is disposed at the second component mounting position in the second mounting area.
- A component mounting apparatus equipped with a device for conveying and holding a plate-like member according to Claim 7, wherein, when the board is conveyed between the first rail-like holding member and the second rail-like holding member by the conveying member, each board conveying/holding device further comprises a stopper (32) which is brought into contact with the board and positions and holds the board in a vicinity of a center of the whole component mounting work area combining the first mounting area and the second mounting area.
- A component mounting apparatus equipped with a device for conveying/holding a plate-like member according to Claim 7, wherein, when the first board conveying/holding device and the second board conveying/holding device are positioned adjacent to each other in one line, the board can be conveyed from the first board conveying/holding device towards the second board conveying/holding device.
- A component mounting apparatus equipped with a device for conveying and holding a plate-like member according to Claim 7, further comprising a loader (1) for carrying the board into each board conveying/holding device and an unloader (11) for carrying the board out from each board conveying/holding device, wherein the first board conveying/holding device and the second board conveying/holding device can independently perform carrying-in of the board from the loader and carrying-out the board to the unloader, respectively.
- A method for conveying and holding a plate-like member, wherein, when a ball screw shaft (35) disposed to extend in a direction perpendicular to a longitudinal direction of a first rail-like holding member and a second rail-like holding member rotates in a plate-like member conveying/holding device (3, 13) equipped with the first rail-like holding member (21) and the second rail-like holding member (22), which can carry in and out and hold a plate-like member (2), rotation of a nut (27, 48) which is screw-threaded to the ball screw shaft and attached to each of the first rail-like holding member and the second rail-like holding member is regulated so that the first rail-like holding member and the second rail-like holding member are integrally moved in parallel to convey the plate-like member, and
regulation of rotation of the nut of either one rail-like holding member of the first rail-like holding member and the second rail-like holding member is released so that the nut is rotated together with the ball screw shaft upon rotation of the ball screw shaft, movement of the one rail-like holding member is regulated and the other rail-like holding member of the first rail-like holding member and the second rail-like holding member, of which rotation of the nut is regulated, is moved during rotation of the ball screw shaft so that only the other rail-like holding member is moved in parallel with respect to the one rail-like holding member to adjust a gap between the first rail-like holding member and the second rail-like holding member. - A method for mounting components, comprising:carrying in a board from a loader to a first conveying/holding device by the loader and the first conveying/holding device, the first conveying/holding device performing an operation for conveying the plate-like member according to the method for conveying and holding a plate-like member defined in claim 17;moving the first board conveying/holding device holding the carried-in board to a side of one component feed unit;mounting components in the one component feed unit onto the board held by the first board conveying/holding device;carrying the board from the first board conveying/holding device to a second board conveying/holding device by the first conveying/holding device and the second board conveying/holding device, each of the first conveying/holding device and the second conveying/holding device performing an operation for conveying the plate-like member according to the method for conveying and holding a plate-like member defined in claim 17;moving the second board conveying/holding device holding the carried-in board to a side of the other component feed unit;mounting components in the other component feed unit onto the board held by the second board conveying/holding device; andcarrying the board from the second board conveying/holding device to an unloader.
- A method for mounting components according to Claim 18, wherein the component mounting in the first board conveying/holding device and the component mounting in the second board conveying/holding device are simultaneously performed.
- A method for mounting components according to Claim 18, wherein, while the board conveyance from the loader to the first board conveying/holding device, the board conveyance from the first board conveying/holding device to the second board conveying/holding device, and the board conveyance from the second board conveying/holding device to the unloader are performed on a board conveyance path in one line, and the one component feed unit and the other component feed unit are opposed to each other in a direction perpendicular to an extending direction of the board conveyance path, the components are mounted on a half area of the board on a side of the one component feed unit in the first board conveying/holding device and the components are mounted on a half area of the board on a side of the other component feed unit in the second board conveying/holding device.
- A method for mounting components according to Claim 18, wherein the board conveyance from the loader to the first board conveying/holding device, the board conveyance from the first board conveying/holding device to the second board conveying/holding device, and the board conveyance from the second board conveying/holding device to the unloader are simultaneously performed.
- A work device for a plate-like member, comprising:a first plate-like member conveying/holding device (3) constructed by the device for conveying and holding a plate-like member defined in claim 1 and having the first rail-like holding member (21) and the second rail-like holding member (22) carrying in and out the plate-like member (2) at a plate-like member conveying position and holding the carried-in plate-like member; anda second plate-like member conveying/holding device (13) which can be adjacent to the first plate-like member conveying/holding device at the plate-like member conveying position, constructed by the device for conveying and holding a plate-like member defined in claim 1 and having the first rail-like holding member (21) and the second rail-like holding member (22) for carrying in the plate-like member (2) by the first plate-like member conveying/holding device via the first plate-like member conveying/holding device, holding the plate-like member carried in by the first plate-like member conveying/holding device, and carrying out the held plate-like member at the plate-like member conveying position,the first plate-like member conveying/holding device (3) comprising a first moving device (35, 27, 40, 48, 70) for moving the first rail-like holding member (21) and the second rail-like holding member (22) of the first plate-like member conveying/holding device in a direction crossing the plate-like member conveying direction between the plate-like member conveying position and a first work position at which a prescribed work is performed for the plate-like member held by the first rail-like holding member (21) and the second rail-like holding member (22) of the first plate-like member conveying/holding device, andthe second plate-like member conveying/holding device (13) comprising a second moving device (35, 27, 40, 48, 70) for moving the first rail-like holding member (21) and the second rail-like holding member (22) of the second plate-like member conveying/holding device in a direction crossing the plate-like member conveying direction between the plate-like member conveying position and a second work position at which a prescribed work is performed for the plate-like member held by the first rail-like holding member (21) and the second rail-like holding member (22) of the second plate-like member conveying/holding device,wherein the plate-like member is carried in and held by the first rail-like holding member (21) and the second rail-like holding member (22) of the first plate-like member conveying/holding device positioned at the plate-like member conveying/holding position by the first rail-like holding member (21) and the second rail-like holding member (22) of the first plate-like member conveying/holding device, the first rail-like holding member (21) and the second rail-like holding member (22) of the first plate-like member conveying/holding device are moved to the first work position by the first moving device, and the prescribed work is performed for the plate-like member held by the first rail-like holding member (21) and the second rail-like holding member (22) of the first plate-like member conveying/holding device,
the plate-like member held by the first rail-like holding member (21) and the second rail-like holding member (22) of the first plate-like member conveying/holding device is carried in from the first rail-like holding member (21) and the second rail-like holding member (22) of the first plate-like member conveying/holding device positioned at the plate-like member conveying/holding position to the first rail-like holding member (21) and the second rail-like holding member (22) of the second plate-like member conveying/holding device positioned at a position adjacent to the first plate-like member conveying/holding device by the first rail-like holding member (21) and the second rail-like holding member (22) of the first plate-like member conveying/holding device and the first rail-like holding member (21) and the second rail-like holding member (22) of the second plate-like member conveying/holding device and held by the first rail-like holding member (21) and the second rail-like holding member (22) of the second plate-like member conveying/holding device, the first rail-like holding member (21) and the second rail-like holding member (22) of the second plate-like member conveying/holding device are moved to the second work position by the second moving device, and the prescribed work is performed to the plate-like member held by the first rail-like holding member (21) and the second rail-like holding member (22) of the second plate-like member conveying/holding device, and
the plate-like member held by the first rail-like holding member (21) and the second rail-like holding member (22) of the second plate-like member conveying/holding device is carried out from the first rail-like holding member (21) and the second rail-like holding member (22) of the second plate-like member conveying/holding device at the plate-like member conveying/holding position by the first rail-like holding member (21) and the second rail-like holding member (22) of the second plate-like member conveying/holding device. - A work device for a plate-like member according to Claim 22, wherein a work area of the work device is divided into two, a first work area (201) and a second work area (202), assuming the plate-like member conveying direction at the plate-like member conveying position as a border, and
during a work for the plate-like member, the first moving device moves the first plate-like member conveying/holding device to the first work position in the first work area in which the prescribed work is performed for the plate-like member held by the first plate-like member conveying/holding device, while the second moving device moves the second plate-like member conveying/holding device to the second work position in the second work area in which the prescribed work is performed for the plate-like member held by the second plate-like member conveying/holding device. - A work device for a plate-like member according to Claim 22 or 23, wherein the plate-like member is a board onto which components are to be mounted, the work device for performing the work for the plate-like member is a component mounting apparatus for mounting the components onto the board and the first and second plate-like member conveying/holding devices are first and second board conveying/holding device; and
a component mounting work area (200) in the component mounting apparatus, in which the components are mounted, is divided into a first mounting area (201) and a second mounting area (202) along a board conveying direction, the first board conveying/holding device can be moved to a first component mounting position as the first work position in the first mounting area by the first moving device, while the second board conveying/holding device can be moved to a second component mounting position as the second work position in the second mounting area by the second moving device, and the components are independently mounted onto a board held by each board conveying/holding device in each mounting area. - A work device for a plate-like member according to Claim 24, wherein a first component feed unit (8A, 8B) for feeding the components to be mounted onto the board is disposed at an end edge portion in the first mounting area on an opposite side of the second mounting area, a first component recognition unit (9) is disposed in a vicinity of the first component feed unit and on a side of the first work position, and the work device further comprises a working head (4) which can move in the first mounting area, holds the components from the first component feed unit, and mounts the components onto the board held by the first board conveying/holding device positioned at the first component mounting position after the components are recognized by the first component recognition unit, and
a second component feed unit (18A, 18B) for feeding the components to be mounted onto the board is disposed at an end edge portion in the second mounting area on an opposite side of the first mounting area, a second component recognition unit (19) is disposed in a vicinity of the second component feed unit and on a side of the second work position, and the work device further comprises a working head (14) which can move in the second mounting area, holds the components from the second component feed unit, and mounts the components onto the board held by the second board conveying/holding device positioned at the second component mounting position after the components are recognized by the second component recognition unit. - A work method for a plate-like member, comprising:while a first plate-like member conveying/holding device (3) which can carry in and out and hold a plate-like member (2), and a second plate-like member conveying/holding device (13) which can carry in and out and hold a plate-like member (2), are positioned adjacent to each other at a plate-like member conveying position, by performing an operation for conveying the plate-like member according to the method for conveying and holding a plate-like member defined in claim 17 by the first conveying/holding device, carrying the plate-like member into the first plate-like member conveying/holding device by the first plate-like member conveying/holding device, carrying in and holding the carried-in plate-like member by the second plate-like member conveying/holding device via the first plate-like member conveying/holding device by the first plate-like member conveying/holding device, and carrying in and holding a subsequent plate-like member by the first plate-like member conveying/holding device by the first plate-like member conveying/holding device;moving the first plate-like member conveying/holding device from the plate-like member conveying position to a first work position in a direction crossing a plate-like member conveying direction, and moving the second plate-like member conveying/holding device from the plate-like member conveying position to a second work position in a direction crossing the plate-like member conveying direction;performing a prescribed work for the plate-like member held by the first plate-like member conveying/holding device at the first work position, and performing a prescribed work for the plate-like member held by the second plate-like member conveying/holding device at the second work position;moving the first plate-like member conveying/holding device from the first work position to the plate-like member conveying position in a direction crossing to the plate-like member conveying direction, while moving the second plate-like member conveying/holding device from the second work position to the plate-like member conveying position in a direction crossing to the plate-like member conveying direction; andwhile the first plate-like member conveying/holding device and the second plate-like member conveying/holding device are positioned adjacent to each other at the plate-like member conveying position, by performing an operation for conveying the plate-like member according to the method for conveying and holding a plate-like member defined in claim 17 by the second conveying/holding device, carrying out the plate-like member held by the second plate-like member conveying/holding device from the second plate-like member conveying/holding device by the second plate-like member conveying/holding device, while carrying out the plate-like member held by the first plate-like member conveying/holding device from the first plate-like member conveying/holding device to the second plate-like member conveying/holding device by the first plate-like member conveying/holding device and the second plate-like member conveying/holding device.
- A work method for a plate-like member according to Claim 26, wherein, when a work area of the work device is divided into two, a first work area (201) and a second work area (202) assuming the plate-like member conveying direction at the plate-like member conveying position as a border and the plate-like member conveying/holding devices are moved to the work positions;
the first plate-like member conveying/holding device is moved to the first work position in the first work area, in which the prescribed work is performed for the plate-like member held by the first plate-like member conveying/holding device, while the second plate-like member conveying/holding device is moved to the second work position in the second work area, in which the prescribed work is performed for the plate-like member held by the second plate-like member conveying/holding device. - A work method for a plate-like member according to Claim 26 or 27, wherein, when the plate-like member is a board onto which components are to be mounted, the work device for performing the work for the plate-like member is a component mounting apparatus for mounting the components onto the board, the first and second plate-like member conveying/holding devices are first and second board conveying/holding devices, and a component mounting work area (200) in the component mounting apparatus, in which components are mounted is divided into a first mounting area (201) and a second mounting area (202) along a board conveying direction;
the first board conveying/holding device can be moved to a first component mounting position as the first work position in the first mounting area, while the second board conveying/holding device can be moved to a second component mounting position as the second work position in the second mounting area by the second moving device, and components are independently mounted onto a board held by each board conveying/holding device in each mounting area. - A work method for a plate-like member according to Claim 28, wherein, in the first mounting area, the components are held by a working head (4) from a first component feed unit (8A, 8B) installed at an end edge portion on an opposite side of the second mounting area in the first mounting area during the prescribed work and, after the components held by the working head are recognized by a first component recognition unit (9) disposed in a vicinity of the first component feed unit and on a side of the first work position, the components held by the working head are mounted onto the first board conveying/holding device positioned at the first component mounting position,
while independently from the above component holding, component recognition, and component mounting, in the second mounting area, the components are held by a working head (14) from a second component feed unit (18A, 18B) installed at an end edge portion on an opposite side of the second mounting area in the second mounting area, and, after the components held by the working head are recognized by second component recognition unit (19) disposed in a vicinity of the second component feed unit and on a side of the second work position, the components held by the working head are mounted onto the second board conveying/holding device positioned at the second component mounting position. - A work method for a plate-like member according to Claim 28, wherein the plate-like member is held across both the first and second plate-like member conveying/holding devices (3, 13), and the first and second plate-like member conveying/holding devices are synchronously moved in parallel to either one of the first mounting area (201) and the second mounting area (202) to mount the components.
- A method for mounting components according to Claim 18, wherein, while the board conveyance from the loader to the first board conveying/holding device, the board conveyance from the first board conveying/holding device to the second board conveying/holding device, and the board conveyance from the second board conveying/holding device to the unloader are performed on a board conveyance path in one line, the one component feed unit and the other component feed unit are opposed to each other in a direction perpendicular to an extending direction of the board conveyance path and each component recognition unit (9, 19) is disposed in a vicinity of each component feed unit on a side of the board conveyance path, the component mounting of the first board conveying/holding device is performed by holding the components from the one component feed unit, recognizing them by the component recognition unit disposed in the vicinity of the one component feed unit on the side of the board conveyance path, and then mounting them on a half area on the side of the one component feed unit of the board held by the first board conveying/holding device in the first board conveying/holding device, and component mounting of the second board conveying/holding device is performed by holding the components from the other component feed unit, recognizing them by the component recognition unit disposed in the vicinity of the other component feed unit on the side of the board conveyance path, and then mounting them on a half area of the board on the side of the other component feed unit of the board held by the second board conveying/holding device in the second board conveying/holding device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08101050A EP1940215A3 (en) | 1999-05-21 | 2000-05-19 | Device for transferring/holding sheetlike member and its method |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14159799 | 1999-05-21 | ||
JP14159799 | 1999-05-21 | ||
PCT/JP2000/003212 WO2001026440A1 (en) | 1999-05-21 | 2000-05-19 | Device for transferring/holding sheetlike member and its method |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP08101050A Division EP1940215A3 (en) | 1999-05-21 | 2000-05-19 | Device for transferring/holding sheetlike member and its method |
Publications (3)
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EP1185156A1 EP1185156A1 (en) | 2002-03-06 |
EP1185156A4 EP1185156A4 (en) | 2005-11-30 |
EP1185156B1 true EP1185156B1 (en) | 2008-03-12 |
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Application Number | Title | Priority Date | Filing Date |
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EP00929798A Expired - Lifetime EP1185156B1 (en) | 1999-05-21 | 2000-05-19 | Device for transferring/holding sheetlike member and its method |
EP08101050A Withdrawn EP1940215A3 (en) | 1999-05-21 | 2000-05-19 | Device for transferring/holding sheetlike member and its method |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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EP08101050A Withdrawn EP1940215A3 (en) | 1999-05-21 | 2000-05-19 | Device for transferring/holding sheetlike member and its method |
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US (3) | US6988612B1 (en) |
EP (2) | EP1185156B1 (en) |
JP (2) | JP4523217B2 (en) |
KR (1) | KR100532015B1 (en) |
CN (2) | CN1258312C (en) |
DE (1) | DE60038292T2 (en) |
SG (2) | SG102037A1 (en) |
TW (1) | TW474122B (en) |
WO (1) | WO2001026440A1 (en) |
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- 2000-05-19 CN CNB008078548A patent/CN1258312C/en not_active Expired - Fee Related
- 2000-05-19 CN CNB2006100735677A patent/CN100566537C/en not_active Expired - Fee Related
- 2000-05-19 KR KR10-2001-7014565A patent/KR100532015B1/en not_active IP Right Cessation
- 2000-05-19 EP EP00929798A patent/EP1185156B1/en not_active Expired - Lifetime
- 2000-05-19 SG SG200200839A patent/SG102037A1/en unknown
- 2000-05-19 US US09/979,221 patent/US6988612B1/en not_active Expired - Fee Related
- 2000-05-19 EP EP08101050A patent/EP1940215A3/en not_active Withdrawn
- 2000-05-19 DE DE60038292T patent/DE60038292T2/en not_active Expired - Lifetime
- 2000-05-19 SG SG200200838A patent/SG111046A1/en unknown
- 2000-05-20 TW TW089109751A patent/TW474122B/en not_active IP Right Cessation
-
2005
- 2005-01-18 US US11/035,952 patent/US7219787B2/en not_active Expired - Lifetime
- 2005-01-18 US US11/035,997 patent/US7077262B2/en not_active Expired - Lifetime
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015108448B3 (en) * | 2015-05-28 | 2016-05-12 | Asm Assembly Systems Gmbh & Co. Kg | Conveying device and method for conveying substrates for a placement machine |
Also Published As
Publication number | Publication date |
---|---|
CN100566537C (en) | 2009-12-02 |
US20050133346A1 (en) | 2005-06-23 |
KR20010113949A (en) | 2001-12-28 |
EP1185156A1 (en) | 2002-03-06 |
EP1940215A2 (en) | 2008-07-02 |
EP1940215A3 (en) | 2011-03-16 |
US7077262B2 (en) | 2006-07-18 |
CN1258312C (en) | 2006-05-31 |
SG102037A1 (en) | 2004-02-27 |
CN1838871A (en) | 2006-09-27 |
US6988612B1 (en) | 2006-01-24 |
CN1351817A (en) | 2002-05-29 |
JP4523217B2 (en) | 2010-08-11 |
WO2001026440A1 (en) | 2001-04-12 |
KR100532015B1 (en) | 2005-11-29 |
JP4975845B2 (en) | 2012-07-11 |
DE60038292T2 (en) | 2009-03-12 |
JP2010157767A (en) | 2010-07-15 |
EP1185156A4 (en) | 2005-11-30 |
DE60038292D1 (en) | 2008-04-24 |
US20050204553A1 (en) | 2005-09-22 |
TW474122B (en) | 2002-01-21 |
US7219787B2 (en) | 2007-05-22 |
SG111046A1 (en) | 2005-05-30 |
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